Smallest particle of an element that retains its properties.

Proteins are the most abundant chemical in the human body.

Used for blood clotting.

Divides the body in right and left portions.

Glycogen, the storage form of glucose, is primarily stored in skeletal muscle and liver cells.

All organic compounds contain carbon except CO2 and CO.

Brain.

Buttock.

Match the figure to its name. Lipid.

A bond in which electrons are shared equally.